Hollow concrete wall.



W. LAKE.

HOLLOW CONCRETE WALL.

APPLICATION FILED DEG.23,1910.

Patented Mar. 19, 1912.

Atturnvg mitwezzv'a longitudinal vertical section of WILMOT, LAKE, OFWASHINGTON, DISTRICT OF COLUMBIA.

HOLLOW CONCRETE WALL.

it ,OZtMllil.

Specification of Letters Patent.

Patented Mar. 19, MHZ.

Application filed December 23, 1910. Serial No. 598.971.

To all whom, 1' 6 may concern Be it known that I, Vrmror LAKE, citizenof the United States, residing at Vashington, in the District ofCohunbia, have invented certain new and useful Improvements in HollowConcrete \Valls, of which the tollowing is a specification.

The object of the invention is to provide impn'ovements in hollowconcrete walls for the purposes ot'bindiug the concrete. preventingsweating, protecting the wall hollows, and pcrn'iitting communicationbetween the hollows of the wall.

V A still further object of the invention is to provide a silo for theconcrete, and means for suppm'ting the operator or operators from thelaid wall sections or layers during the laying of the remaining sectionsor layers of the wall.

A still further object of the invention is 'to provide a. silo likeapparatusfor constructing hollow artificial walls, such apparatusembodying sides comprising a plurality of boards or slabs adapted 1.: beused successively one after the other in the process of wall forming,means intervening the wall layers so as to permit the artificialsubstance of one layer to congeal or harden with the adjacent layers,and to protect the hollows of thewall, and permit communication betweenthe hollows of the wall.

Various other objects, advantages and improved results are attainable inthe practical application of the invention.

In the accompanying drawings forming a part of this application: Figure1 is a per-' part of a wall showing the Fig. 2 is a part of a wallembodying my invention. Fig. 3 is a cross section. Fig. 1 is a detailperspective view of part of the clamping device and platform holder.Fig. 5 is a perspective of part of one of the side boards. Fig. 6 is asection on the line :vw Fig. Fig. 7 is a detail cross section. Fig. 8 isa perspective view of a modification.

The same reference numerals denote the same parts throughout theseveral'views of the drawings.

\Vhile two or more pairs of side boards or spective view of applicationof the invention.

slabs 1. may be employed for forming a silo into which is placedconcrete 2, or-eiher similar substance or material for formin' thecores; a like by raising the clamping device from the first artificialstone walls, three pair of suc boards are SllifiClBDt 1n constructing awall of any desired height, as will be hereinafter fully explained. Thelower longitudinal edge of each of said boards is provided with rests 3projecting from the inner side thereof and adapted to rest upon the topedge of a all layer or section for supporting the boards during thefilling in of the concrete therebetween, such rests permitting theboards to be readily removed by suitable hooks applied to rings 1 011the boards, so that the boards may be used one after the other duringthe building of 'a wall.

The combination clamping device and platform holder comprises a pair ofuprights 5 loosely hinged or fulcrumed centrally to a cross brace G, theupper-end of the uprights are connected by a turn-buckle 6 and a pair ofscrew-rods 7, one of which has a left-hand screw and the other aright-hand screw, or equivalent means, for expanding and contractingthis end of the clamp for effecting a ,similar movement of the other endthereof in a clamping operation, the lower end of the uprights isprovided with cleats 8, which engage a plate opening 9,,secured to theouter side ofthe boards 1, and the uprights are provided with asupporting bracket 10, for a platform board 11. v

An essential feature of the invention consists in inter-posing fabricmaterial such as wire gauze or wire mesh 12, or a similar elementbetween the layers, sections or charges of concrete in the constructionof a wall according to my method as follows: In starting a wall a. setof hollow cores 13, is placed at desired intervals apart within a pairof side boards held in position by the clamping device, and the firstlayer or section of concrete is filled in flush with the top surface ofthe cores and the latter are removed, and a sheet of wire mesh" isplaced upon the top surface of the said concrete layer or section, thesame set of hollow cores is set upon said wire mesh so that the coresnow over-lap the openings 13 left in the wall section 'by the removal ofthe said cores therefrom with the fabric therebetween, another pair ofboards is set (by means of the rest 3) upon the said' first layer orsection of concrete between the clamping members or uprights without ad"ustin or o eratin the latter and a second'l'ayer or section of concreteis filled in upon the fabric third operation is perfected or wire sheetand around mentioned pair of boards to the second mentioned pair ofboards, removing the said first boards from the wall and placing themupon the top edge of the said second boards where they are supported onthe said second concrete section by their rests 3, the clamp is thentightened. This operation may be continued by successively alternatingthe boards in pairs, for building a wall of-any desired height, withoutconstructing a scaffold, as the workmen may stand upon the laid concretesections while moving the clamps, and it is obvious that the platformboards carried by the clamp-brackets is used by the workmen for allother purposes in theoperation of the apparatus for building walls. Itwill be seen that the wire gauze or mesh forms'a support for the coresduring the pouring of the concrete into wall position, and also forms ascreen for the core open ings, and that in the absence of the gauze thecores could not be usedfor making a wall according to applicantsinvention.

Referring to the modification shown in Fig. 8, a strip 15 is secured tothe bottom edge of the board 16, and the inner edge of such strip isprovided with teeth 17 forming a rest or supportfor the board in awallbuilding operation, and answers the same purpose asthe rests 3hereinbefore referred to. Care should be taken that the wire sheets ormesh are narrower or of less width than the thickness of the wall sothat the edges of the mesh will not protrude through to the surface orfaces of the completed wall. It is obvious that the wire mesh not onlyforms a tie between the sections or layers of concrete, but it supportsthe concrete which partially over-laps said holes, and it covers thecore holes and'prevents their filling, and inview of the alternatingposition of such holes with the intervening wire mesh therebetween,communication is made between the set of holes of each layer from thebottom to the top and from end to end of the wall, and the latter ispreserved without the usual sweating, and a composite hollow wallwithout visible seams or joints is produced. It will be seen that thecross brace or fulcrum 6 will permit the clamp to be adjusted accordingto the thickness of the wall under construction.

I do not wish to be understood as confining myself to any particularfabric or character of dividing screens or mesh; to the wall material;to the means for operating the clamp; nor to the size, shape orparticular material of the apparatus or any part or parts thereof.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. A cored monolithic wall composed of alternate layers of'concrete andfabric mesh, the cored openings and the partitions of the wallalternating vertically with the mesh intervening therebetween so as topermit communication between the openings.

2. A cored monolithic wall composed of alternate layers of concrete andwire mesh, and having openings alternating with. vertical )artitions soas to form communication between all of such openings through the mesh.

3. A hollow wall composed of alternate layers of concrete and wiremesh,-each concrete layer having openings vertically therethrough whichalternate with vertical partitions in the layers, said mesh forming asupport for suitable cores during the pouring of the concrete andforming top and bottom screens for the openings .of each concrete layer.V

In witness whereof I hereunto set my hand in the presence of twowitnesses.

W'ILMOT LAKE.

